Lynn, Massachusetts

Lynn, Massachusetts Lynn, Massachusetts

What is the Water Quality in Lynn, Massachusetts?

[Updated: June 9, 2023]

Compared to other US cities, Lynn water quality ranks in the middle range for contamination excluding Lead.

Most of their 24 contaminants have cancer-causing attributes.

  • Chloroform is at very high levels: 41x health guidelines.
  • Haloacetic acids (HAA5) are at extremely high levels: 159x health guidelines.
  • Haloacetic acids (HAA9) are at extremely high levels: 373x health guidelines.
    • These are both byproducts of the chlorine treatment process most water supplies go through.

Let’s look closer at what’s in Lynn water.

What’s in Lynn water?

Here are the top 5 chemical compounds in your water and what health issues they can potentially cause:

  1. Bromodichloromethane – Potential effect: Cancer
  2. Chloroform – Potential effect: Cancer
  3. Haloacetic acids – Potential effect: Cancer
  4. Hexavalent Chromium – Potential effect: Cancer
  5. Total trihalomethanes – Potential effect: Cancer

These are five of the 24 contaminants analyzed by the Environmental Working Group (

11 of these contaminants are rated as exceeding EWG Health Guidelines.

Does Lynn water have Lead contamination?

Yes, the most recent Lead samples collected from 2015 through 2017 showed concentrations of 2.8 parts per billion (ppb).

The legal limit for lead is 15 parts per billion. Being well-below this level is a good thing.

  • Concentrations between 3.8 ppb and 15 ppb put a formula-fed baby at risk of elevated blood lead levels. Read more about the symptoms of Lead in water.

There is no safe level of lead for humans.

  • The good news is that 99.99% of the lead can be removed.

See the What Can You Do? section below to learn how to filter out contaminants.

Where does Lynn’s water come from?

Lynn’s water comes from the Outlet Saugus River – Frontal Broad Sound watershed.

All 27 EPA assessed water sources in the Outlet Saugus River – Frontal Broad Sound watershed are in Impaired or Unknown condition. These include:

  • Belle Isle Inlet
  • Bennetts Pond Brook
  • Birch Pond
  • Boston Inner Harbor
  • Breeds Pond
  • Chelsea River
  • First Pond
  • Flax Pond
  • Floating Bridge Pond
  • Foster Pond
  • Griswold Pond
  • Lynn Harbor – two segments
  • Mill Creek
  • Nahant Bay
  • Pines River
  • Sales Creek
  • Saugus River – three segments
  • Shute Brook – two segments
  • Sluice Pond
  • Spring Pond
  • Swains Pond
  • Winthrop Bay

Ideally, a water source would be rated in Good condition.

Whether a water source is in Impaired or Good condition refers to the quality of these uses:

  1. Drinking Water
  2. Aquatic Life
  3. Fish and Shellfish Consumption
  4. Recreation

Learn more from How’s My Waterway

See below for what you can do to improve Lynn’s water.

Conclusion – What Can You Do?

Information about water quality in Lynn can be surprising.

To Remove Lead and Other Contaminants In Your Home:

  • Use Activated Carbon filters to remove most contaminants in your drinking water.
    • Faucet-mount filters work better than pitchers.
    • PUR and Brita are low-cost and effective.
Brita Lead Filtration
Brita Faucet Mount – Amazon
Reverse Osmosis Systems for Lynn
APEC system – Amazon

*Chlorination is an effective method of disinfecting/treating drinking water. You can then use a water filter to reduce the effects of chlorination byproducts to get the safest, cleanest water possible.

In Your Community:

Contact your local government officials and put pressure on them to invest in cleaner waterways and upgraded city water filtration and treatment.

Go to: to find contact information for your local officials.

Water Quality in Other Massachusetts Cities

Massachusetts Water Quality Page

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